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E-Stop (switch 1 in position 0)
With switch 10 the maximum number of e-stop loops is selected. Open
(unused) inputs (S_1/S_2 and S_3/S_4) have to be linked with a wire bridge.
K1 and K2 can only be activated, if all e-stop buttons are released. The
function diagrams show only the action of one e-stop button. We pretend
that the others are closed.
When the unit is used with 2-channel e-stop loops, it checks the state of
the inputs. If both channels have different signals for more then 50 ms the
outputs K1 and K2 are switched off and the unit gives failure code 7. This
failure is stored and can only be reset by disconnecting the auxiliary supply.
Function Diagrams
Auxiliary voltage (A1/A2)
E-stop
K1/K2 (13-14, 23-24, 33-34)
Output 48 (failure state)
Output 58 (waiting for start)
: off
: on
: flashing
E-stop, 2-channel, auto start
Auxiliary voltage (A1/A2)
E-stop
Start button (S43/S44)
K1/K2 (13-14, 23-24, 33-34)
Output 48 (failure state)
Output 58 (waiting for start)
: off
: on
: flashing
E-stop, 2-channel, manual start
Application Example
L+
A1+
S11 S12 S14 S13
BH5910
A2-
L -
Pic. 2: E-stop, 2-channel, with 4 e-stop loops, auto start (switch 1 in position 0, switch 10 in position 0 )
M8428
M8429
E-
E-
stop
stop
S21 S22 S24 S23
48
13
23
failure state
Settings on switch 10
Number
Type of
Switch10
of E-stop
control
loops
0
4
2 channel
1
3
2 channel
2
8
1 channel
3
6
1 channel
4
3
2 channel
5
3
2 channel
6
6
1 channel
7
6
1 channel
8
position not allowed (failure code 5
9
position not allowed (failure code 5
Terminal designation
Ter-
E-stop loop,
minal
1 channel
S11
E-stop 1
S12
S13
E-stop 2
S14
S21
E-stop 3
S22
S23
E-stop 4
S24
S31
E-stop 5
S32
S33
E-stop 6
S34
S41
E-stop 7
S42
S43
E-stop 8
S44
Semiconductor outputs
Output
Flashing signal
48
E-stop active or
failure in feedback circuit or
failure on start button
58
Wait for start button
E-
stop
S31 S32 S34 S33
S41 S42 S44 S43
K1
K2
33
34
24
14
machine enabling
32
Type of
Feedback circuit for
start
external contactors
Auto-Start
no
Manual start
no
Auto-Start
no
Manual start
no
Auto-Start
yes
Manual start
yes
Auto-Start
yes
Manual start
yes
E-stop loop,
Feedback circuit
2 channel
and/or manual start
E-stop 1
E-stop 2
E-stop 3
Feedback circuit or
no connection
E-stop 4
Start button
Continuous signal
Relay K1, K2 active
E-
stop
58
waiting for start
BH 5910 / 23.06.22 en / 594A
M8425_a
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